Troubleshooting; The Blower Does Not Run; The Compressor Does Not Run - Desert Aire ExpertAire LC Series Installation And Operation Manual

4.

Troubleshooting

Although Desert Aire dehumidifiers have been designed for reliable and trouble-free
operation, you may occasionally encounter a service-related problem. If you cannot
immediately diagnose and fix the problem, do not be intimidated by the apparent complexity
of the dehumidifier. Your common sense and experience can help you solve the majority of
these problems.
These problems or complaints are frequently caused by improper interlocks between the
dehumidifier and the other equipment and accessories at the jobsite. You may need to
consult with other contractors who have worked on different portions of this project.
The following list will help you diagnose some of the most obvious symptoms of a system
which does not work properly.
4.1

The Blower Does Not Run

POSSIBLE CAUSE
System terminal switch in open
position
Loss of main power
Blower overload has tripped
Faulty control wiring
4.2

The Compressor Does Not Run

NOTE: Under some circumstances the compressor will not run even though the humidity in
the room may be too high. See section 5.4 for more information on the control sequence for
the dehumidifier.
REMEDY
Close system terminal switch.
Check for tripped circuit breaker or
blown fuses.
Correct cause and reset overload.
Check for loose or incorrect wires on
system and controller.
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Desert Aire - LC/LV Manual